基于Docker部署Tomcat集群、 Nginx負(fù)載均衡的問(wèn)題小結(jié)
寫(xiě)在前面
看完Dokcer相關(guān)的書(shū)籍，正好有個(gè)項(xiàng)目要這樣搞，所以自己練習(xí)一下。
當(dāng)作一百世一樣。這里的道理很明白:我思故我在,既然我存在,就不能裝作不存在。無(wú)論如何,我要為自己負(fù)起責(zé)任?！跣〔ā度ⅰ?
結(jié)構(gòu)圖：
這里僅作為一種學(xué)習(xí)，一般這種負(fù)載的話，Nginx是放到主機(jī)側(cè)的， JavaWeb(Tomcat)應(yīng)用放到容器里。
效果
新建文件夾。
D=uag;mkdir $D;cd $D;mkdir uag_nginx uag_tomcat8; ls uag_nginx uag_tomcat8
一，Ngixn 鏡像制作
cd uag_nginx/ # 用于存放配置文件 mkdir nginx vim Dockerfile
Dockerfile 文件內(nèi)容
FROM nginx LABEL maintainer="uag" ENV REFRESHED_AT 2021-08-27 EXPOSE 8099
構(gòu)建nginx配置文件內(nèi)容
這個(gè)的配置文件，在容器運(yùn)行的時(shí)候通過(guò) -v參數(shù)與 容器內(nèi)部共享。方便后期參數(shù)更改
cd ./nginx vim nginx.conf
nginx.conf 配置文件內(nèi)容
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log notice;
pid /var/run/nginx.pid;
daemon off;
events {
worker_connections 1024;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$upstream_addr - $remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_age
配置負(fù)載:172.23.231.190為宿主機(jī)IP,8069,8079,8089為對(duì)應(yīng)的Java Web 暴露的應(yīng)用端口。
# 這里配置負(fù)載
upstream backend {
server 172.23.231.190:8069;
server 172.23.231.190:8079;
server 172.23.231.190:8089;
}
構(gòu)建Nginx鏡像
docker build -t uag/uag_nginx .
二，java Web(Tomcat)應(yīng)用鏡像構(gòu)建
cd uag_tomcat8/ vim Dockerfile
Dockerfile 文件內(nèi)容
FROM dordoka/tomcat MAINTAINER LIRUILONG COPY UAWeb.war /opt/tomcat/webapps/UAWeb.war EXPOSE 8080 ENTRYPOINT [ "/opt/tomcat/bin/catalina.sh", "run" ]
上傳對(duì)應(yīng)的War包
ls Dockerfile UAWeb.war
構(gòu)建鏡像
docker build -t uag/uag_tomcat .
三，運(yùn)行容器 Nginx鏡像
docker run -d -p 8099:8099 --name uag_nginx -v $PWD/nginx/nginx.conf:/etc/nginx/nginx.conf uag/uag_nginx nginx
java Web(Tomcat)鏡像
docker run -it -d -p 8089:8080 --name uag_app_1 uag/uag_tomcat docker run -it -d -p 8079:8080 --name uag_app_2 uag/uag_tomcat docker run -it -d -p 8069:8080 --name uag_app_3 uag/uag_tomcat
查看運(yùn)行的容器
瀏覽器訪問(wèn)
查看負(fù)載方式:新進(jìn)程的方式
查看負(fù)載方式:–volumes-from 方式
Dockerfile文件
FROM nginx LABEL maintainer="uag" ENV REFRESHED_AT 2021-08-27 VOLUME /var/log/nginx/ EXPOSE 80
┌──(liruilong㉿Liruilong)-[/mnt/e/docker/uag/uag_nginx] └─$ docker run -it --rm --volumes-from nginx_log centos cat /var/log/nginx/default_access.log 172.23.231.190:8069 - 172.17.0.1 - - [30/Aug/2021:12:55:02 +0000] "GET /UAWeb/services/listServices HTTP/1.1" 200 12660 "http://127.0.0.1:8099/UAWeb/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36" "-" 172.23.231.190:8079 - 172.17.0.1 - - [30/Aug/2021:12:55:02 +0000] "GET /UAWeb/axis2-web/css/axis-style.css HTTP/1.1" 200 1587 "http://127.0.0.1:8099/UAWeb/services/listServices" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36" "-" 172.23.231.190:8069 - 172.17.0.1 - - [30/Aug/2021:12:55:02 +0000] "GET /UAWeb/axis2-web/images/asf-logo.gif HTTP/1.1" 200 5866 "http://127.0.0.1:8099/UAWeb/services/listServices" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36" "-" 172.23.231.190:8079 - 172.17.0.1 - - [30/Aug/2021:12:55:02 +0000] "GET /UAWeb/axis2-web/images/axis_l.jpg HTTP/1.1" 200 12340 "http://127.0.0.1:8099/UAWeb/services/listServices" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36" "-" 172.23.231.190:8089 - 172.17.0.1 - - [30/Aug/2021:12:55:03 +0000] "GET /UAWeb/services/listServices HTTP/1.1" 200 12660 "http://127.0.0.1:8099/UAWeb/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36" "-" 172.23.231.190:8069 - 172.17.0.1 - - [30/Aug/2021:12:55:03 +0000] "GET /UAWeb/axis2-web/images/asf-logo.gif HTTP/1.1" 200 5866 "http://127.0.0.1:8099/UAWeb/services/listServices" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92
構(gòu)建好鏡像上傳倉(cāng)庫(kù)：
嗯，需要注冊(cè)一個(gè)Docker Hub賬號(hào)，然后登錄，需要鏡像前面加 賬戶名/
┌──(liruilong㉿Liruilong)-[/mnt/e/docker/uag/uag_nginx] └─$ docker push liruilong/nginx_log The push refers to repository [docker.io/liruilong/nginx_log] An image does not exist locally with the tag: liruilong/nginx_log ┌──(liruilong㉿Liruilong)-[/mnt/e/docker/uag/uag_nginx] └─$ docker tag 9c9af0362eb9 liruilong/nginx_log ┌──(liruilong㉿Liruilong)-[/mnt/e/docker/uag/uag_nginx] └─$ docker push liruilong/nginx_log The push refers to repository [docker.io/liruilong/nginx_log] fb04ab8effa8: Pushed 8f736d52032f: Pushed 009f1d338b57: Pushed 678bbd796838: Pushed d1279c519351: Pushed f68ef921efae: Pushed latest: digest: sha256:2af7e8aeab84e8a816caf6b0342e1a45f95c7089ff52578040ea3a4c28a943c7 size: 1570 ┌──(liruilong㉿Liruilong)-[/mnt/e/docker/uag/uag_nginx] └─$ docker push liruilong/nginx_log:tagname # 拉去鏡像
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